作　　者： ; ; ; ; ; ;

机构地区： 广西大学化学化工学院

出　　处： 《材料工程》 2008年第12期70-72,77,共4页

摘　　要： 用甜菜碱为有机改性剂对蒙脱土(MMT)进行有机改性,使其变为有机蒙脱土(O-MMT),并采用熔融插层法制备了聚乙烯/有机蒙脱土(PE/O-MMT)复合材料。通过特性黏度分析了不同含量有机改性蒙脱土的聚乙烯/有机蒙脱土复合材料样品膜在人工加速老化实验下的光降解特性,并采用扫描电镜分析了有机蒙脱土含量为0%和4%的聚乙烯/有机蒙脱土复合膜表面形貌。结果表明:有机改性蒙脱土(O-MMT)能有效提高聚乙烯的光降解稳定性。 Organic montmorillonite （O-MMT） was formed through the way that betaine ions exchanged with Na^＋ in montmorillonite. Then the PE/O-MMT composites were synthesized through melt intercalation and processed by the photo-oxidation degradation in artificially accelerated aging oven. The intrinsic viscosities of the PE in the composites films which contained different contents of O-MMT were analyzed respectively and the Scanning Electron Microscopy （SEM） was used to analysis the morphology of PE/O-MMT composites films containing 0% ,4% O-MMT. The results indicated that the photo-oxidation degradation stability of the PE in the composites films was higher than that of pure polyethylene film.

关 键 词： 聚乙烯 有机蒙脱土 光降解

领　　域： [一般工业技术]